    <div id="left">
      <ul id="menu">
        <!--<li><a id="menu_index" href="index.php"<?php if($php_self == 'index.php'){?> class="menu_selected"<?php }?>>首页</a></li>-->
        <!-- <li><a id="menu_article"  href="article.php"<?php if($php_self == 'article.php'){?> class="menu_selected"<?php }?>>文章</a></li> -->
        <li><a id="menu_page"  href="page.php"<?php if($php_self == 'page.php'){?> class="menu_selected"<?php }?>>页面</a></li>
        <li><a id="menu_category"  href="product.php"<?php if($php_self == 'product.php'){?> class="menu_selected"<?php }?>>商品</a></li>
        <li><a id="menu_message"  href="message.php"<?php if($php_self == 'message.php'){?> class="menu_selected"<?php }?>>留言</a></li>
        <li><a id="menu_configuration"  href="configuration.php"<?php if($php_self == 'configuration.php'){?> class="menu_selected"<?php }?>>设置</a></li>
        <li><a id="menu_logout"  href="logout.php">登出</a></li>
      </ul>
    </div>